Base for a car seat



FIG. 1 is a top left front perspective view of a base for a car seat showing my new design;

FIG. 2 is a left side elevational view thereof; the right side elevational view being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a top left front perspective view of a base for a car seat showing our new design, and showing, in phantom, a car seat which may be placed into said base for a car seat.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a base for a car seat, as shown and described. 